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Registered memory improves signal integrity (and hence potentially clock rates and physical slot capacity) by electrically buffering the signals with a register, at a cost of an extra clock of increased latency. Those modules are identified by an additional R in their designation, whereas non-registered (a.k.a. "unbuffered") RAM may be identified by an additional U in the designation. PC3-644200R is a registered PC3-6400 module, PC3-6400R ECC is the same module but with additional ECC

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Q: What is meant by registered DIMM and unbuffered DIMM?
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Related questions

If a memory module doesn't support registers or buffers?

It is called an "unbuffered dimm"


If a memory module doesnt support registers or buffers it is always referred to as a?

Unbuffered DIMM.


Mixing unbuffered memory with buffered or registered memory will work but is not recommended?

FALSE


Which one is faster simm or dimm?

dimm


Which dimm give better performance a single-ranked dimm or a dual-ranked dimm?

single-ranked


Which memory module standard RIMM or DIMM is an open standard?

DIMM is an open standard. DIMM is also copyrighted open standard.


A DIMM in any one of the DIMM slots is referred to as?

Bank


What prevents a ddr dimm from being installed in a ddr2 dimm slot on a mother-board?

the different notch positions keep someone from installing a DDR DIMM or DDR2 DIMM in the wrong memory slot.


What is the function of the Dimm Slots?

DIMM stands for Dual Inline Memory Module. DIMM slots are the slots on a motherboard that hold the memory modules.


What type of computer uses the 68-pin micro-dimm and 144-pin so-dimm?

The type of computers that uses 68-pin micro-dimm and 144-pin so-dimm. :P problem... you just got trolled.


What is ddr3 dimm?

240-pin DDR3 dimm is currently the fastest memory. it can support quad, triple, or dual channels or be installed as a single dimm. it has an offset notch father from the center than a ddr2 dimm


How are simm and dimm a like?

SIMMs and DIMM are both type of main memory modules. One in single-sided (SIMM) and one is double-sided (DIMM).